Air-accumulator.



w. P. MERRYMAN.

AIR AGGUMULATOR.

APPLICATION FILED NOV.19,190-7.

Patented Mar. 30, 19%

Pm 8 I 6 witmaooco U NITEI) STAIil-ES PA lliiihliil fli lldiiil WVILLIAMFRANCIS MERRYMAN, OF IIENVER, ASSIHNOR ()l (l\ l'I-IlALl TU l'il'lh llY-R.'\\'OLUO'l"l, Oi DENVER. COLORADO.

AIR-AOCUM'ULAIOR.

No. 916,886. Specification of Letters Patent. Patented March 30, 1909.

Application filed November 18, 1907. Serial No. 402,937.

T all whom it m I J/ concern: The same reference characters indicatetlic55 Be it known that .l, \l'inmnn Flowers same parts in an the \"lGWS.

- '1 1 w J l v 1",, MERRYMAN, a citizen of the l mtcd States, lies thenumeral 5 (lGHlgDut-a the [Io/1,410

residing in the city and county of Denver 'tleroughwhich the water maypass. Mount- 5 and State of Colorado, have invented certain ed upon thisnozzle is the air accumulator (i new and useful Improvements inAir-Accuhaving a main chamber 7 and an auxiliary 60 mulators; and I dodeclare the. following to chamber The nozzle is centered in the be afull, clear, and exact description of the chamber 7 by means ofcentering screws 9.

invention, such as will enable others skilled The air accumulator isprovided with an 10 in the art to which it appcrtains to make andopening 10 directly in front of tho dis .uirge use the same, referencebeing had to the opening of the nozzle but remorcd'a short accompanyingdrawings, and to the figures distance therefrom. 'ihc rear portion ofthe of reference marked thereon, which form a accumulator or that remotefrom the dispart of this specification. charge extremity of the nozzle,is provided My invention relates to improvements in with twonippios and13, one communicatair accumulators or devices for accumulating ing withthe chamber 7 and the other with the the air passing with a stream ofwater or auxiliary chamber 8. The auxiliary chaniother liquid through anozzle or pipe or conbor 8 communicates with the main chamber duit ofany kind. I '2' at its forward extremity by means of an 20 The device ismore especially adapted for opening 14.

use in connection with the nozzles of fire When the device is in use,tubes 15 and 16 hose, in order to enable a fireman to wear a are"connected at one extremity with the mask adapted to exclude smoke andgases nipples 12 and 13 respectively, while their to which firemen aresubject in entering opposite extremities lead to a mask .17 worn 25burning buildings. This air accumulator by the user of the device (seeFig. 1). lhis.

is mounted upon the hose nozzle and promask its the face so closely asto exclude jccts slightly beyond the discharge end the surroululingatmosphere as well as thereof. As the water leaves the discharge smokeand noxious gases of any kind with extremity of the nozzle it expandsand the which the air may-be laden. By means of 30 air contained thereinaccumulates in my the tubes 15 and 16, fresh air is supplied to-improved device and may be utilized by the the operator and the exhaustair removed.

fireman wearing the mask for breathing It is evident that my improveddevice pur oses. may be advantageously employed wherever y improved airaccumulator is considerit maybe properly connected with the nozzle 35ably larger than the hose nozzle, the latter or other device or pipethrough which water being centered therein leaving a chamber or otherliquid is passing, since liquid issuing around the nozzle with which theexhaust from a pipe or nozzleunderpressure, releases tube is connected.Outside of the main a considerable quantity of air at the issuingchamber, is an air chamber separated from extremity of the dischargepipe or nozzle,

40 the main chamber except at the forward and this air by means of myaccumulator,

extremity of the device or where the water may be utilized in a truestate since the disleaves the nozzle Where an opening is procharge ofwater from the forward extremity vidod to allow the air to enter theauxiliary of the accumulator pro rents smoke or noxchamber. ions gasesfrom entering the accumulator 45 Having briefly outlined my improvedconand mingling with the air.

struction, I will proceed to describe the same llnving thus described myii'ivcntion, what in detail reference being made to the aecon1- 1 claimis: panyingdrawing in which is illustrated an 1. The combination with anozzle of an embodiment thereof. air accumulator comprising a casingsur- 50 In this drawing, Figure 1 is a perspective rounding the nozzlewhereby an air chamber View showing my improved device in use. aroundthe nozzle and within the casing is Fig. 2 is a detailvicw showing thedevice in formed, the casing being also provided with longitudinalsection, and on a larger scale. an auxiliary air cl'iamber whose bodyportion Fig. 3 is a side elevation of the same. is separated from themain ,air chamber butv 'wi 'hiose forward extremity is incommunicatlonwith the main'chamber, and tubes re speetively connectedwlth the mom and auxiliary chambers, whereby h'esh an 9.1 eeee rearextremities of the chambers having 5 openings, tubes connected with thesaid openings, and a mask with which the 0p- 18 posite extremities ofthe tehes are connected,

supplied to the operator and the exhaust en the forward extremity of thecasing having removed.

2. The combination with a hose nozzle, of

an air accumulator comprising a easing mounted upon the nozzle andprovided with i it main air u chamber, the latter being separated fromthe artition, the forward chamber and en auxiiierv air main chamber by aextremity of the sum Iary chamber belng in communication with the mainchamber, the

en openipg in line with the dischzirrge extremity ,of the nozzle. y

In testimony whereof I efiix my signature in presenoe of two wltnesses.

WILLIAM FRANCIS MERRYMAN. Witnesses:

DENA NELSON, JESSIE HOBART.

